Heh, okay. What your car comes with stock are 2 550cc's in the primary rail and 2 850cc's in the secondary rail, both sets of which are "side feed" injectors. Now, you can mill out your primary rail to accept the bigger 850cc injectors, but from what I've read on here, it'll make your idle pretty lumpy. You can also get 1300cc injectors, which is probably the easiest option because not only are they bigger but they're also side feed, so all you have to do is replace your stock 850cc injectors with them and you're set. Or you can go bigger with 1600cc injectors, but you'll need a completely new fuel rail because 1600cc injectors are only top feed, not side feed.

That's basically your fuel options right there as far as only injectors and fuel rails go. I didn't mention the 1000cc injectors because not only are they more than the 1600cc injectors, they'll also require the same mods and won't net you as much fuel.

Edit- Rynberg is right as well. You'll probably need a new fpr plus injector clips to use the 1600cc's.

 

Not whining just trying to save for the tune.. but i think i finally understand... not sure why it took me so long.. mayb lack of sleep but who knows... SO lets say i buy this:

http://www.rx7store.net/product_p/ni...o%201300cc.htm

Get it installed and everything i will be ok to run 12-14 psi safely?

 

Yes, 1300cc injectors will more than cover you and will be the easiest upgrade to do as far as not having to buy other parts.

 

Alright well then thats what i will go with... finally i understand and know what to do.. i thank u guys alot for helping a noob out

 

No problem, we all start somewhere. Just remember that once you do get the new injectors installed, you'll have to go into the PFC and change the injector settings so it knows that you actually have bigger injectors then.